Radiator



June 11, 1929. PHELPS E AL 1,716,459

RADIATOR Filed Feb. 14, 1925 ZSheets-Sheet l l i i M 75 1 k Q A M M Fa -+-5 14 29 U /5 5 Z 5 4 75 z 72 6 %Z 74 (June/"tor Thomas E. M EEfly,\

GEO/EGE h. PHEL P5 I 1 QM a t/hummus J1me 1929- G. H. PHELPS ET AL RADIATOR Filed Feb. 14, 1925 42 :4,

2 Sheets-Sheet THOM/IS E. Mum/em, JE

GEORGE H- Pl/EL PS Melt 00M043 Patented June 11, T1929.

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amass GEORGE E. PHELPS, OF WAREHOUSE POINT, CONNECTICUT, AND THOMAS E. MURRAY, JR., OF BROOKLYN, NEW YORK; SAID PHELPS ASSIGNOR TO'SAID' MURRAY.

IATOR.

Application filed February In the application of Thomas E.

No. 725,559 there is described a radiator of great economy and efliciency with a chamber for the heating medium and a sheet metal radiating structure at the sides of the cham ber, using thin copper for the chamber and the radiating structure and making the chamber itself exceptionally thin. The present invention aims to provide certain improvements in radiators of the same general type; which improvements, however, are applicable also in large part to radiators of other types.

The accompanying drawings illustrate'em- 16 bodiments of the invention.

Fig. 1 is a perspective view of a radiator;

Fig. 2 is a horizontal section of the same on the line 22, of Fig. 1;

Fig. 3 is a vertical section on the line 33 of Fig. 2;

Fig. 4 is a side elevation of the same;

b Fig. 5 is a verticalsection of the cham- Fig. 6 is a cross-section thereof on the line 6-6 of Fig. 7;

Fig. 7 is a side elevation thereof;

F igs..8 and. 9 are fragmentary perspective views 'of modifications in detail;

Fig. 10 is a view similar to Fig. 6 illustrating another modification.

Referring to the embodiments of the invention illustrated, from which the usual valves and other accessories are omitted, steam or other heating medium is carried in a narrow, generally rectangular, chamber illustrated separately in Figs. 5, 6 and 7;

Thesides of the chamber are engaged by a radiating structure which conducts the heat out into the surrounding air, and is shaped to provide vertical passages or fiues for facilitating circulation of the heated air. The chamber is indicated as a whole at 1. The radiating structure at each side comprises plates 2extending laterally, connected at their outer and inner ends respectively by longitudinally extending plates 3 and 4. Preferably the chamber and the radiating structure are made of extremely thincopper or cuprous metal. The plates 3 and 4 are corrugated vertically to strengthen them and provide increased surface. The radiating structure extends along both sides of the chamber and around the ends thereof. It may be made in one or more sections unit- Murray 14, 1925. Serial No. 9,185.

used to extend from the edges thereof around the ends of the chamber. Assuming the radiator of a size'including six pairs of lateral plates in its length the end plates are la ped over the side plates, bent into lateral ns 2 and then bent as at 5 to pass around the ends of the chamber. The inner portions 4 of the radiating structure are united to the chamber in any way which will provide a good transmission of heat such as by soldering or welding.

The chamber 1, while generally rectangular in section, has its sides shaped to provide swells or bulges 6 between the flat portions 7 (Figs. 5 and 6), to which the radiating structure is united; the parts 7 being also vertically corrugated to fit the corrugations of the parts 4 of the radiating structure. These outward enlargements at the sides of the chamber give a greater area on the outer face exposed to the air circulating upithe fiues. In addition, these parts 6 may be bent to form transverse ribs 8 (Fig. '8) which will help to strengthen them as well as provide extra radiating surface. Also the outward bends 6 strengthen the side walls of the chamber and improve its ability to resist bending under pressure or vacuum within 'so that it will not be subject to the inward and outward bending and eventual fatigue which would occur with flat sides.

For further protection against the yielding of the walls when there is a vacuum within the chamber, we may provide an internal brace consisting of a flanged channel shaped member 9 (Figs. 5 and 6) holding the sides spaced apart. In this connection it will be noted that the outward bends provide spaces such as 10' (Fig. 6) at the sides of the inner braces to permit free circulation of steam. Shouldered rivets or other styles of internal bracing may be substituted for the single channel shown.

Direct engagement between the chamber and the radiating structure is needed only for heat conductivity. The parts are firmly held together by other means described be- The radiating structure extends not only laterally but also vertically beyond the top, and preferably the bottom, of the chamber. In this way, additional radiating surface is provided which is very useful,'partic'ularly where metal of such high conductivity is used. This feature at the same time procorners extending from end to end and by channels 15 extending from end to end between the inner sides of the radiating struc-' ture.

For greater stifi'ness the laterally extending portions 20f the radiating structure may be provided at intervals in their height with horizontal corrugations 16 as shown in Fig. 9.

Fig. 10 illustrates an alternative arrangement in which theradiating structure comprises the lateral portions 2 connected at their inner ends withhorizontally arched portions 17 which engage the outward bends 6 on the sides of the chamber; the parts 17 being held in place by channels 18 similar to the channels 11 of Fig. 2. Thisarrangement offers some economy in the amount of metal used for the radiatingstructure. It has the dis-.

advantage, compared with Fig. 2, that there is not so much metal of which both faces are exposed to the air to heat it.

The chamber 1 can be very economically produced by bending a single sheet of metal to form the sides, top and bottom, soldering or welding the lower edges together and crimping them as at 19, Fig. 5. This joint is not exposed to view. Also the end joints of the chamber are covered by the surrounding radiator structure so that the entire apparatus is of a pleasing unitary appearance.

We propose also to bend the ends of the fins or plates of the radiating structure so as to form inwardly extending flanges 20 -along' the top and bottom edges. This proves the appearance.

stiffens them laterally so as to prevent their being bent out of shape and thus facilitates the use of very thin metal; and also .im-

act as beams to resist deformation under the pressure within the chamber. They may be of other shapes than the channel shape shown and for greater stiffness they may be The members 11' radiators with reference to piping, furniture and so forth, and generally healthier because more uniformly distributed warmth. The velocity of the air is increased by in creasing the height of the flues to the point where the transmission of heat from the radiating structure diminishes to such an extent as to be oifset by the increased friction.

These advantages gained by the simple expedient of elongated air flues, may be obtained. by the application of such fines to heating elements of various other designs than the steam chamber illustrated. And

the 'invention'may be applied not only to radiators of the type illustrated for heating rooms but also to similar structures for transferring heat or cold from the internal element to air or other fluids passing through the -flues. For example .cold brine or the like may be circulated through the chamber so that the latter becomes a heating element only in the negative sense; extracting heat from the radiating structure and inducing a flowof the cooled air downward through the flues similar to the upward circulation induced by the use of steam.

In a previous application of Thomas E. Murray, No. 709,080, filed April 26, 1924, there is described a radiator of construction basically similar to that of the present application; and in said ltlurray application claims are made to cover broadly the features common to the two cases, the claims 1n the present case being limited to points of distinction over claims in the earlier Murray application.

Though we have described with great particularity of detail certain embodiments .of our invention, yet it is not tobe understood therefrom that the invention is restricted to the particular embodiments disclosed. Various modifications thereof may be made by those skilled in the art without departure from the invention as defined in the following claims. J r e What we claim is:

1. A radiator including in combination a heating element comprising a chamber with thin flexible sides of substantial height, a separately formed radiating structure of sheet metal having portions bearing against the opposite sides of said chamber and fastening members engaging the outer faces of.

said portions of the radiating structureand connected to each other to hold. the radiat- Iiong structure in close contact with the cham- 2. A radiator including in combination a heating element comprising a chamber with thin flexible sides of substantial height, a separately formed radiating structure of cor rugated sheet metal having the inner portions of the corrugations bearing against the opposite sides of said chamber and fastening members engaging the outer faces of said portions of the radiating structure and connected to each other to hold the radiating structure in close contact with thechamber.

3. A radiator including in combination a heating element comprising a chamber with thin flexible sides of substantial height and a radiating structure engaging the side thereof forming flues extending vertically beyond said chamber.

4. A radiator including in combination a heating element comprising a chamber with thin flexible sides of substantial height and a radiating structure engaging the side thereof forming flues extending vertically above and below said chamber.

. 5. A radiator including in combination a heating element comprising a chamber with thin flexible sides of substantial height and separately formed fins engaging and extending outward from the sides of said chamber and forming continuous flues extending vertically beyond the same, sides being fastened to each other above and below the chamber.

6. A radiator including in combination a heating element and a radiating structure comprising laterally extending plates connected to each other at their outer edges to form closed air flues, and braces on the corners of said radiating structure.

7. A radiator including in combination a chamber for the heating medium with thin flexible side walls of substantial height and a radiating structure comprising laterally extendlng plates connected to each other and separate sections connected to the edges thereof and extending around the end of the chamber.

8. A radiator including in combination a thin-walled chamber for the heating medium tending .outward from the sides of said her having its sides them between such fins. r

9; A radiator including combination a the fins at opposite 1 chamber so as to brace said sides, the chamber having its sides corrugated at points between such fins.

10. A radiator including in comblnatlon a thin-walled chamber for the heating medium and separately formed fins engaging and extending outward from the sides of sald chamber so as to brace said sides externally, the chamber being reinforced internally.

11. A radiator includingin combinatlon a thin-walled chamber for the heating med1-. um and separately formed fins engaglng and extending outward from the sides of said chamber so as to brace said sides externally, the chamber having its sides bent outward to stiffen them between such fins and a. longitudinal internal brace engaged by the sides of the chamber at its points of least width.

12. A radiator including in combination a chamber for the heating medium and fins engaging and extending outward from the sides of said chamber and vertically beyond the same and bracing means between the vertically extended portions of such fins.

1-3. Aradiator including in combination a heating element and a radiating structure at the side thereof comprising fins of thin flexible metal extending vertically and stiffened by a transverse flange at the top.

14. A radiator including in combination a chamber for the heating medium and fins engaging and extending outward from the sides of said-chamber and vertically beyond the same and transversely flanged on their upper edges.

15.-A radiator including in combination a thin substantially flat chamber for the bination with beams on the outside arranged.

to resist deformation under internal pres- ;and'separat-ely formed fins engaging and exsure.

In witness whereof, we have hereunto signed our names. 

